El Salvador, 4 reales, R-in-beaded-circle countermark (Type IV, 1862-3) on a Guatemala 4 reales, 1860R, rare, NGC VF details / cleaned, c/s VF standard. KM-96. Bold full countermark on neck of Carrera, silvery host with incipient toning on reverse, minor scratches. NGC #3901880-009.
Estimate: $600-900